# ***** BEGIN GPL LICENSE BLOCK *****
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# The Original Code is Copyright (C) 2013, Blender Foundation
# All rights reserved.
#
# The Original Code is: all of this file.
#
# Contributor(s): Sergey Sharybin.
#
# ***** END GPL LICENSE BLOCK *****

set(INC
	.
	../guardedalloc
)

set(INC_SYS
)

set(SRC
	opensubdiv_capi.h
	opensubdiv_capi_type.h
	opensubdiv_converter_capi.h
	opensubdiv_evaluator_capi.h
	opensubdiv_gl_mesh_capi.h
	opensubdiv_topology_refiner_capi.h
)

if(WITH_OPENSUBDIV)
	macro(OPENSUBDIV_DEFINE_COMPONENT component)
		if(${${component}})
			add_definitions(-D${component})
		endif()
	endmacro()

	list(APPEND INC_SYS
		${OPENSUBDIV_INCLUDE_DIR}
		${GLEW_INCLUDE_PATH}
	)

	list(APPEND SRC
		internal/opensubdiv.cc
		internal/opensubdiv_converter_factory.cc
		internal/opensubdiv_converter_internal.cc
		internal/opensubdiv_converter_orient.cc
		internal/opensubdiv_device_context_cuda.cc
		internal/opensubdiv_device_context_opencl.cc
		internal/opensubdiv_evaluator.cc
		internal/opensubdiv_evaluator_internal.cc
		internal/opensubdiv_gl_mesh.cc
		internal/opensubdiv_gl_mesh_draw.cc
		internal/opensubdiv_gl_mesh_fvar.cc
		internal/opensubdiv_gl_mesh_internal.cc
		internal/opensubdiv_topology_refiner.cc
		internal/opensubdiv_topology_refiner_internal.cc
		internal/opensubdiv_util.cc

		internal/opensubdiv_converter_factory.h
		internal/opensubdiv_converter_internal.h
		internal/opensubdiv_converter_orient.h
		internal/opensubdiv_converter_orient_impl.h
		internal/opensubdiv_device_context_cuda.h
		internal/opensubdiv_device_context_opencl.h
		internal/opensubdiv_evaluator_internal.h
		internal/opensubdiv_gl_mesh_draw.h
		internal/opensubdiv_gl_mesh_fvar.h
		internal/opensubdiv_gl_mesh_internal.h
		internal/opensubdiv_internal.h
		internal/opensubdiv_topology_refiner_internal.h
		internal/opensubdiv_util.h
	)

	OPENSUBDIV_DEFINE_COMPONENT(OPENSUBDIV_HAS_OPENMP)
	# TODO(sergey): OpenCL is not tested and totally unstable atm.
	# OPENSUBDIV_DEFINE_COMPONENT(OPENSUBDIV_HAS_OPENCL)
	# TODO(sergey): CUDA stays disabled for util it's ported to drievr API.
	# OPENSUBDIV_DEFINE_COMPONENT(OPENSUBDIV_HAS_CUDA)
	OPENSUBDIV_DEFINE_COMPONENT(OPENSUBDIV_HAS_GLSL_TRANSFORM_FEEDBACK)
	OPENSUBDIV_DEFINE_COMPONENT(OPENSUBDIV_HAS_GLSL_COMPUTE)

	data_to_c_simple(shader/gpu_shader_opensubdiv_vertex.glsl SRC)
	data_to_c_simple(shader/gpu_shader_opensubdiv_geometry.glsl SRC)
	data_to_c_simple(shader/gpu_shader_opensubdiv_fragment.glsl SRC)

	add_definitions(-DGLEW_STATIC)

	if(WIN32)
		add_definitions(-DNOMINMAX)
		add_definitions(-D_USE_MATH_DEFINES)
	endif()

	# TODO(sergey): Put CUEW back when CUDA is officially supported by OSD.
	#if(OPENSUBDIV_HAS_CUDA)
	#	list(APPEND INC
	#		../../extern/cuew/include
	#	)
	#	add_definitions(-DOPENSUBDIV_HAS_CUEW)
	#endif()

	if(OPENSUBDIV_HAS_OPENCL)
		list(APPEND INC
			../../extern/clew/include
		)
		add_definitions(-DOPENSUBDIV_HAS_CLEW)
	endif()
else()
	list(APPEND SRC
		stub/opensubdiv_stub.cc
		stub/opensubdiv_evaluator_stub.cc
		stub/opensubdiv_gl_mesh_stub.cc
		stub/opensubdiv_topology_refiner_stub.cc
	)
endif()

blender_add_lib(bf_intern_opensubdiv "${SRC}" "${INC}" "${INC_SYS}")
